Is it possible that in a multiple choice paper that a child could miss a box out by mistake, and put all the subsequent answers in the wrong boxes, and that this would be picked up on a manual remark?
That is a very valid point.
My own child did that a few years ago in a multiple choice paper (VR)for an independent school exam, realised the errors at the end and managed to change the lot!
I dread to think what it might have been if that was not done - the results would have been apallingly low.
If you think there is
a possibilty that may have happened, you have to get your skates on right after school opens. The 2nd test is on 7th January with a reserve date for illnesses around the 14th Jan. I can confirm that for you later on.
But do this checking with the school quietly for if your son did not made any such error but has somehow missed the cut off qualifying mark for that one day tests, he will not need to know any more other than that he has done his best.